Electric cut-out.



PATENTED MAY 9, 1905.

R. DREIBHOLZ. ELECTRIC CUT-OUT.

l APPLIUATION FILED AUG. 17, 1903.V

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UNTTED STATES Patented May 9, 1905.

PATENT OFFICE.

REINHOLD DREIBHOL OF HCHST-ON-THE-MAIN, GERMANY, ASSIGNOR TO O. & H. KELLER, OF FRANKFORT-ON-THE-MAIN, GERMANY.

ELECTRIC cur-OUT.

SPECIFICATION forming part of Letters Patent N0. 789,265, dated May 9, 1905.

Application filed August 1'7, 1903. Serial No. 169,750.

In ./,LZZ 7,071,071?, 711 may concern:

Be it known that I, REINI-IOLD DREIBHOLZ, engineer, a subject of the King of Prussia, German Emperor, residing at No. 2 Knigsteiner street, Hchst-on-the-Main, in the Kingdom of Prussia, German Empire, have invented a new and useful Improvement in Electric Cut-Outs, of which the following is a specification.

My invention relates to an electric cutout which can be used at pleasure Without any alteration as a distributing-box or as a plug-contact or as a ceiling-block for pendants.

This invention is in a mode of execution illustrated in the accompanyingr drawings, in which- Figure 1 is a plan of the electric cut-out usedas a distributing-box. tical longitudinal section through the same. Fig. 3 is a plan of the same in combination with a cover and a plug-key to serve as a plug-contact. Fig. 4 is a vertical section through the same on the line A B in Fig. 3, partly in elevation. Fig. 5 is a view of the electric cut-out used as a ceiling-block for pendants, and Fig. 6 is a vertical` section through the same.

Similar letters of reference refer to similar parts throughout the several views.

As will be seen from Figs. 1 and 2, the electric cutout comprises a socket ia, of insulating material, such as wood or the like, which is provided on the upper surface with a plurality of grooves b b, disposed in various directions and on the lower surface with a circular cavity n and four lateral openings m m. On the periphery of the socket are provided one concentric groove Z and several branch grooves o o, leading to the grooves b l). Moreover, the socket a is provided with a central bore In two paralel grooves b Z) near the center line are embedded two main contactrails c c, which are each provided with one cross-hole. e, one separate binding-screw Zi, and four holes 1 g, with binding-screws r r. Parallel to the main contact-rails c c in suitable broken grooves b Z) are secured four sub- Fig. 2 is a versidiary contact-rails c c, which are each provided with two binding-screws and suitable holes. Preferably the grooves Z) b are made so deep that the heads of all the binding-screws r 1" ZL do not project above the level of the upper surface of the socket a. The socket a is preferably protected on the upper surface by a cover i, of insulating material, which is secured in any known manner-for example, by two wood-screws engaging in holes s s. The cover i is provided with a central opening 7c and two holes t t, which correspond to those c e of the main contact-rails c c. In the holes g g at the ends of the main and subsidiary contact-rails c c and c c, respectively, several (here up to twelve) line-wires can be secured by means of the binding-screws r r, which line-wires may lead to all directions. The socket a is so formed that all line-wires leading to and from it can be disposed at a convenient distance from the wall or ceiling and that the line-wires may be conducted around the socket in its concentric groove Z in a known manner. Where so preferred, the socket a may be provided with several concentric grooves Z instead of the one shown.

The cavity n and the lateral openings m m serve for the circulation of the free air a'nd also for the free passage of any moisture that may be formed on the wall, so that the connecting and contact parts are protected against all external influences.

The two main contact-rails c c can be connected with the four subsidiary contact-rails c c by means of subsidiary connections CZ Z or fuse -blocks passing through suitable grooves I) Z) in case the electric cut-out is to serve as a distributing-box or as a plug-contact, respectively.

In case the electric cut-out is to be utilized as a plug-contact a plug-key g, Figs. 3 and 4,

.is so put on the cover i that its two slitted and elastic contact-pins f engage through the holes t t of the cover t' in the holes e c of the two main contact-rails c c. The plug-key g is connected with two line-wires o.

In case the electric cut-out is to be used as a ceiling-block for pendants the two linewires u, leading to the lamp or other electric device, are introduced through the central hole 7c of the cover i and secured at their ends by the binding-serews h h. \(See Figs. 5 and 6.) Should it be necessary to employ a rope or cord for carrying the lamp or other electric device, it can be introduced through the central opening 7c of the cover i and through the central hole p of the socket a, when the cavity n will afford space for a knot formed on the end of the rope or cord.

To secure the device in operative position, nothing else need be done but holes drilled through the free portions of the body, when screws may be passed through said holes and screwed into the wall, ceiling, or the like where the device shall be fastened to.

Having now described my invention, that which l wish to secure by Letters Patent of the United States is- 1. In an electric cut-out adapted to serve at pleasure as a distributing-box or as a plugcontact or as a ceiling-block for endants, the combination with a socket of insulating material, of two main contact-rails embedded in said socket and provided each with a crosshole, a plurality of subsidiary contact-rails embedded in said socket, means for binding in said main contact-rails and in said subsidiary contact-rails a plurality of line-wires, means for arbitrarily connectingsaid main contact-rails with said subsidiary contactrails, a cover of insulating material, and means for securing said cover on said socket.

2. In an electric cut-out adapted to be used at pleasure as a distributing-box or as a plug-contact or as a ceiling-block for pendants, the combination with a socket of insulating material, of two main contact-rails ernbedded in said socket and provided each with a cross-hole, a lurality of subsidiary contact-rails embe ded in said socket, means for binding in said main contact-rails and in said subsidiary contact-rails a plurality of line-wires, two fuse-blocks for arbitrarily connecting said main contact-rails with two of said subsidiary contact-rails, a cover of insulating material provided with two holes corresponding to said cross-holes of said main contact-rails, and means for securing said cover on said'socket.

3. In an electric cut-out adapted to serve at pleasure as a distributing-box or as a plugcontact or as a ceiling-block for pendants,"the combination with a round socket of insulating material and provided with a central bore and on the one side with a plurality of grooves partly communicating with each other, and on the op osite side with a cavity and several latera openings for the free circulation of air or moisture, and on the periphery with one or several concentric grooves and a plurality of longitudinal branch grooves leading to said grooves on the one side, of two main contact-rails embedded in two of said grooves on the one side of said socket and provided each with a cross-hole parallel to the axis of said socket also one separate binding-screw and several holes with binding-screws, a plurality of subsidiary contact-rails embedded in said grooves on the one side of said socket and provided each with two holes and two binding-screws, a cover of insulating material provided with a central openin and two holes corresponding to said cross-ho es of said main contact-rails, and means for securing said cover on said socket.

In witness whereof I have hereunto set my hand in presence of two witnesses.

REINHOLD DREIBHOLZ.

Witnesses:

HERMANN ADoLF KELLER, JEAN GRUND. 

